Hutchinson Gilford Progeria syndrome (HGPS) is a very rare and destructive genetic disorder. It is progressive, causing children to age rapidly beginning 2 years after birth. Children with Progeria usually appear normal at birth, however by 1 year the signs and symptoms of Progeria begin. Symptoms of Progeria include short stature, bulging eyes, micrognathia, disproportion of head to body, alopecia, beaked nose, pathologic bone fractures, hearing loss, photophobia and hypertension. (Alves and others 2014) Progeria’s occurrence is 1 in 4 million to 1 in 8 million live births and males are more frequently affected than females. The average life expectancy for a child with Progeria is about 13. (King 2013) However some with the disease die younger and some live to be 20 years or older. Death in Progeria is primarily caused by heart attacks and atherosclerosis. Atherosclerosis is a disease in which the arteries become hardened. (Bhimji 2011) Although Progeria demonstrates both autosomal dominant and autosomal recessive methods of inheritance, most cases are due to random mutations (Alves and others 2014) In 2003 it was discovered that Progeria is caused by a single base mutation in LMNA which results in the production of a mutant Lamin A protein product called Progerin. (Blondel and others 2014) Progerin is toxic and causes distribution of the nuclear structure, defects in DNA repair processes and other issues that are associated with the premature aging that their bodies
In the beginning of the second year, and last half of the first year the children will stop growing and gaining weight which is accompanied by the hair loss. Between the ages of two and three year the classic facial feature of the Progeria begin to show (Hennekam, 2006 pp. 2603-2624).
Progeria is one of the least known genetic disorders. There are two types of Progeria, the only difference being the age group that it affects. The Hutchinson-Gilford Progeria Syndrome is commonly called Childhood Progeria. The second type of Progeria is Werner’s Syndrome, which is the adult form of Progeria. What basically happens in this disorder is that age is accelerated seven times faster than that of a normal person. For example, for Hutchinson-Gilford Progeria Syndrome, a child could look like he is fifty when he is actually five years old. A twenty year old with Werner’s Syndrome could look similar to a sixty or seventy year old person. There is, even now, not much information known about this genetic disorder because
How is it possible for a child to be born looking healthy to then rapidly age and die at an early age? Progeria, a genetic disease, is the answer. This rare disease causes premature aging and is fatal. By looking at the symptoms, the genetic cause, the research for a cure, and what you can do it, is possible to understand progeria.
Some ways to detect Progeria are genetic tests of the patient’s blood and clinical exams. Furthermore, the major signs begin developing when the child is around eighteen to twenty-four months old and he will experience accelerated aging even though he was born looking normal. One major symptom is hair loss. Patients are born with hair texture and color, but around six months to two years, the hair begins to fall out. Then, from two to three years, they are usually bald, but might have some thin, light hair. Loss of eyelashes and eyebrows are also experienced. Along with hair loss, these children grow slowly resulting in a shrunken physique and minimal weight gain. For males, their approximate height and weight are 40 inches and 25 pounds; but females are about 32 inches and 20 pounds. In When Good Things Happen to Bad People, doctors have stated these kids will "grow to be very short," and "would never grow much beyond three feet."( Kusher 1-2) Moreover, there are distinctive physical traits in the face and body. "By the second year of life, there is also under development (hypoplasia) of the facial bones and the lower jaw." ("Hutchinson-Gilford Progeria") Also, "the face appears disproportionately small in comparison to the head, and bones of the front and the sides of the skull (cranium) are unusually prominent." ("Hutchinson-Gilford Progeria") Some other characteristics observed in the face are a thin
Progeria, also known as Hutchinson-Gilford Progeria Syndrome (HGPS) is an extremely rare genetic disorder where symptoms resembling aspects of aging are displayed at a very early age (Progeria 101). A genetic disease is an illness caused by one or more abnormalities in the genome, especially a condition that is congenital (present from birth). Genetic diseases are rare and may or may not be heritable. There are thousands of extremely rare genetic diseases, one being Progeria. Progeria affects its victims and their families more than physically; it takes a toll on the mental and emotional state of mind.
The type of Progeria Sam had is called Hutchinson-Gilford Progeria Syndrome, “child Progeria” rather than Werner’s syndrome, also know as “adult Progeria”, that does not occur until late teens, resulting in longer lives into the 40’s-50’s (“Progeria 101/FAQ"). Progeria has a vast amount of symptoms that the majority of those suffering deal with as well as symptoms that are seen less often. Throughout early infancy, children with Progeria resemble normal infants’ physical appearance. Around age 1 or 2 they begin to display extreme growth delay causing them to be short, and have low weight. Their faces appear to be small compared to their head size; furthermore, their faces seem shrunken, wrinkled, and slender. Skulls will have visible veins along the forehead, nose-bridge, as well as the other areas across the head. Other symptoms include having a small jaw, delayed or failed tooth development, deformity of teeth with crowding, beaked nose, prominent eyes, brittle nails, dislocated hips, skeletal defects, and loss of hair, eyebrows, and eyelashes (Chandravanshi et al.). More damaging symptoms are atherosclerosis (hardening of the arteries), cardiovascular issues (strokes heart attacks), arthritis, and osteoporosis (“Progeria 101/FAQ"). The children who have Progeria are very similar in appearance with little effects from various ethnicities (“Progeria 101/FAQ"). Normally the complications of atherosclerosis lead to the deaths of the children around
Harlequin Ichthyosis, also known as Harlequin syndrome, is a rare genetic skin disorder where the epidermis layer of thin skin is thicker than normal. This disorder is present at birth and is not gender specific. Someone with the disorder would receive a mutated version of the ABCA12 gene from both parents; however, the parents show no signs or symptoms of this genetic mutation. The gene, where the mutation is found present, is responsible for making proteins that are used in the process of normal skin cell development. Because of the mutation, the epidermis endures abnormal development and hard, thick plates of skin are produced.
Lonafarnib, a type of farnesyltransferase inhibitor (FTI) originally developed to treat cancer, has proven effective for Progeria. Every child showing improvement in one or more of four ways: gaining additional weight, better hearing, improved bone structure and/or, most importantly, increased flexibility of blood vessels. Results of the study, which was funded and coordinated by The Progeria Research Foundation, were published September 24, 2012 in Proceedings of the National Academy of Sciences(no author, first treatment
They went to Washington to get money and help from Congress. While there, they got lucky and met Dr. Francis S. Collins and his wife Diane Baker. They agreed to help Sam and his family. They started at Chromosome 1 for answers. Dr. Brown already treated twin boys with troublesome chromosomes. The chromosomes split, turned over, and reattached themselves. This made them find flaws in skin cells. They narrowed it down to a specific spot on the chromosome. Next, they went online to find what genes were in that spot. They realized it was lamin A. This protein can sometimes lead to rare conditions and other problems. The researchers discussed the results together and tested patients. They came to the conclusion that the lamin A was the problem and named the protein progerin. They looked through reports and realized the protein was found in one of Collins’s own patients, Meg Casey. Collins realized she did not have progeria after all. She had mandibuloacral dysplasia
The growth rate is slower than other children that grow normally. Children with progeria syndrome are much shorter and weigh less than the normal growing children their age. Children 9-24 months start to experience growth delays. They have disproportion of a small face compared to the head, an undeveloped jaw, crowded teeth, small eyes, and a small nose. By age two the child experience hair, eyebrow, and eyelashes being loss and replaced by light hair that cannot be visible. Also they can have hip dislocations, strokes, heart attacks, prominent veins on scalp, loss of fat beneath the skin, and skeletal defects. Average die at age thirteen due to heart disease but could range to about eight to twenty one years of
In, Hutchinson-Gilford Progeria syndrome: Substance from broccoli can moderate defects, the author discusses an interesting new discovery made by scientists. Apparently a substance found in broccoli has been shown to help patients diagnosed with HGPS, or Hutchinson-Gilford Progeria syndrome reactivate protein breakdown, which, in reaction, reduces disease related-defects caused by HGPS. Patients with HGPS have a protein known as progerin, which is not functional but is synthesized inside the body. This causes the cells to age prematurely. This, in turn, causes patients to suffer diseases common with the elderly, like atherosclerosis, heart attacks, and strokes. While researching this disease, scientists found that even healthy cells carry progerin,
Hutchinson- Gilford Progeria Syndrome is reported about 1 in 8 million newborns (Parker 16). Hutchinson-Gilford Progeria Syndrome equally affects both sexes and races of children and gives them an appearance of rapid aging (Nordqvist 1). The symptoms of this disease show around eighteen to twenty-four months of
Nuclear Lamina is a mesh like network that lines the nuclear membrane and provides architectural support 2. Lamin proteins are important for cellular structure as well as cellular organization and because of this, functioning lamin proteins are vital in proper expression of genes 1. When mutated, lamin proteins lead to multiple degenerative diseases related to premature aging and diseases like progeria and muscular dystrophy. Although comprehensive research has been done on mutant lamin proteins, the relationship between genotypes and phenotypes are poorly understood 2. This proposal aims to analyze the different genotypic and phenotypic effects by
DiGeorge Syndrome is a chromosomal disorder caused by a defect in chromosome 22. The syndrome can cause heart defects which then leads to a poor immune system function and while that’s occurring it gives low levels of calcium in the blood. The syndrome also causes altered facial characteristics. There is no known cure but calcium acetate by injection or by mouth. Nothing contributes to the disease. What it is like to live with the disorder is having low-set ears, speech impairment, cleft lip and cleft palate, difficulty thinking and understanding, frequent infections, hearing loss can occur and your body will have hyperactivity, nasal voice, or wide spaced eyes. The syndrome is rare only fewer than 200,000 us cases per year. Mostly affected
The responsable of this disorder is the LMNA gen, that produce a necessary protein for the nucleus of a cell is kept together. The researchers think that genetic mutation make the cell unstable, which produce progeria. Unlike others